diff --git a/package.json b/package.json
index 93c249f4..7a18dbdf 100644
--- a/package.json
+++ b/package.json
@@ -68,7 +68,7 @@
         "badge-maker": "^3.3.1",
         "bcryptjs": "~2.4.3",
         "bree": "~7.1.5",
-        "cacheable-lookup": "^6.0.4",
+        "cacheable-lookup": "~6.0.4",
         "chardet": "^1.3.0",
         "check-password-strength": "^2.0.5",
         "cheerio": "^1.0.0-rc.10",
diff --git a/server/cacheable-dns-http-agent.js b/server/cacheable-dns-http-agent.js
index 0eb7a6ee..56e8430e 100644
--- a/server/cacheable-dns-http-agent.js
+++ b/server/cacheable-dns-http-agent.js
@@ -17,6 +17,10 @@ class CacheableDnsHttpAgent {
         this.cacheable.install(https.globalAgent);
     }
 
+    static install(agent) {
+        this.cacheable.install(agent);
+    }
+
     /**
      * @var {https.AgentOptions} agentOptions
      * @return {https.Agent}